Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '716a0911fb74d77ab2a9c03dcc19c7d9c355383fd721fa8079ebfff28578cb10' 
  AND token = 'IRO/ZazgMhbPlxCNejXGvtNIsbDf/R0jUxVPGF0nuA4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}